Brick-press



(No Model.)

J. P. MILLER.

BRICK PRESS.

No. 283,802. Patented Aug. 28, 1883.

WITNESSES: INVEN'IZOR UNITED STATES PATENT OFFICE,

JOSEPH P. MILLER, OF PHILADELPHIA, PENNSYLVANIA.

BRICK-PRESS.

SPECIFICATION forming part of Letters Patent No. 283,802, dated August 28,1883.

Application filed June 27,1883. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH P. MILLER, of the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Brick-Presses, of which improvements the following is a specification.

The object of my invention is to increase the strength and durability of 'and afford improved facilities for the repair or renewal of mechanism connected with the reception and delivery of the bricks to and from the pressboX; and to this end my improvements consist in a lifter-shaft having an arm formed in one piece with its body, and mounted in adjustable bearings in the frame of the machine; also,

in a metallic table having a vertical supportingstandard continuous with its body, and adapted to rest at its lower end in or upon the frame.

The improvements claimed are hereinafter more fully set forth. In the accompanying drawings, Figure 1 is a side view,'in elevation, of a brick-press embodying my invention; Fig. 2, an end view of parts of the same as seen from the left; Fig. 3, a view in perspective of the brick table, and Fig. 4 a similar view of the lifter-shaft.

My improvements are shown as applied to a brick-press having a verticalframe composed of two lateral members, A, between which is located a press-box fitted with a vertically-moving plunger, a, (shown in dotted lines in Fig. 1,) which acts to press the bricks between its upper face and the lower face of a pressureplate, a, secured to the upper ends of a pair of swinging arms, a pivoted to the frame. The plunger a is actuated by a camarm, a, upon a shaft, a", which is mounted in bearings in the frame below the press-box, and connected by links a a with an arm, a, on a rock-shaft, a which is vibrated by an operating arm or lever, a. At the conclusion of the pressing operation it is necessary to elevate the plunger to a sufficient degree to admit of the removal of the pressed brick from the press-box, and such elevation is effected by an oscillating liftershaft and a lifter-arin, which enters a recess on one end of the press-box. As heretofore constructed, so far as my knowledge and information as a manufacturer extends, the lifter-shaft has been inserted and supported in holes in the frame, and the lifter-arm is made of a separate frame.

forging, and is slipped into desired position and secured by a key or pin, or both. As a result of such construction, the parts are liable to frequent breakage, and the renewal of the bearing-surfaces when worn, which can only be effected by the insertion of bushings, is inconvenient and unsatisfactory.

Under my invention I form the lifter-shaft B and lifter-arm B in a single forging, and provide the lifter-shaft, at and near its ends, with suitable shouldered journals, 1), which are mounted and supported in bearings or boxes b, formed upon or secured to the frame, and provided with adjustable caps b secured by bolts and nuts. I am thus enabled to make the shaft and arm of the requisite strength, avoiding the weakening of the shaft due to a keyway or pin-hole, and wear of the journals can be readily and accurately compensated for by the adjustable bearings in which the shaft is mounted.

The bricks are delivered to the press upon a table, O, which I form of a continuous plate of metal, having holes 0 at or near one of its ends for the reception of bolts by which it is secured to the frame, and having a vertical supporting-standard, 0, formed in one piece with its body, projecting downwardly from its opposite end. The lower ends of the standard O rest in or upon recesses or ledges formed in or on the frame, and the table, which may be readily connected to and disconnected from the frame, affords a light, strong, and convenient support for the bricks as delivered.

I claim as my invention and desire to secure by Letters Patent 1. In a brick-press, the combination, substantially as set forth, of a lifter-shaft having a lifter-arm formed in one piece with the body.

of the shaft, and a pair of adjustable cap-boxes secured to the frame and adapted to fit journals upon the lifter-shaft.

2. In a brick-press, the combination, substantially as set forth, of a press-frame and a brick-table secured at or near one end to the frame, and having at its opposite end a supporting-standard continuous with its body and resting in or on recesses or ledges of the JOSEPH P. MILLER.

WVitnesses:

J. SNOWDEN BELL, WALTER S. GIBSON. 

